GNSS News

Raytheon GPS Launch and Checkout Capability Cleared for Test

September 4, 2013By
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Raytheon Company has received Interim Authorization to Test (IATT) security certification for the Global Positioning System Next Generation Operational Control System (GPS OCX) Launch and Checkout System (LCS) four months ahead of schedule. Raytheon received a one-year certification with no liens, meaning the government does not require any changes. The LCS IATT certification enables Raytheon to move to the next... read more

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Registration Opens for ION PTTI 2013 Conference

September 3, 2013By

Registration is now open for the Institute of Navigation’s (ION) Precise Time and Time Interval Meeting (PTTI) to be held December 2-5, 2013 (Tutorials will be held December 2) at the Hyatt Regency Bellevue, Bellevue, Washington. Registration and program information will be available online only. PTTI is an annual conference sponsored by ION with a technical program designed to disseminate... read more

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Galileo’s Secure Service Tested by Member States

September 3, 2013By
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EU Member States have begun their independent testing of the most accurate and secure signal broadcast by the four Galileo navigation satellites in orbit. Transmitted on two frequency bands with enhanced protection, the Public Regulated Service (PRS) offers a highly accurate positioning and timing service, with access strictly restricted to authorized users. “Galileo is in its In-Orbit Validation phase, planned... read more

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Expert Advice: Laser Reflectors to Ride on Board GPS III

September 1, 2013By
Figure 2. Structure and products of the Global Geodetic Observing System related to GPS performance.

By James J. Miller and John LaBrecque, NASA Headquarters, and A.J. Oria, Overlook Systems Technologies, Inc. Satellite laser ranging (SLR) and the results of combining SLR with GPS in the future will translate into significant performance advancements for generations to come, once it is fully implemented as part of the GPS III architecture. Simply put, SLR techniques will improve GPS... read more

Extra Life for IIRs, IIR-Ms

August 29, 2013By

U.S. Air Force engineers are testing on-orbit a technique to extend the life of the 19 GPS IIR and IIR-M satellites on orbit, roughly 60 percent of the current constellation. A new charging method may reduce the rate of satellite battery degradation, thereby extending satellite operational life. If the technique passes the test, the initiative could add a combined 20... read more

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Norwegian Company Gives Galileo Its Voice

August 26, 2013By
Galileo hardware ready for delivery. The last three Search and Rescue Transponders (SARTs), left, and the last two Frequency Generator and Upconverter Units (FGUUs), right, units produced by Kongsberg Norspace under the first work order for the first 14 Galileo Full Operational Configuration (FOC) satellites being prepared for shipment to Surrey Satellite Technology Ltd, seen together with some of the key project team members.

A trans-European production line is progressively transforming the Galileo satnav system into a working reality, according to the European Space Agency (ESA). The 22 satellites so far contracted to join the four already in orbit are having their payloads manufactured at Surrey Satellite Technology Ltd. in the UK, which are then integrated to their satellite platforms at OHB in Germany.... read more

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IFEN and WORK Microwave Offer BeiDou-2 Support, Enhancements for NavX-NCS GNSS Simulators

August 15, 2013By
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The NavX-NCS GNSS multi-frequency simulator now supports China’s BeiDou-2 navigation satellite system. BeiDou support is a key enhancement in software update V.1.9 for the NavX-NCS GNSS multi-frequency simulator product line, by IFEN  and  WORK Microwave. Leveraging new features and functionalities, users have the flexibility to support a wide range of constellations, frequencies, and channels for research and development of GNSS... read more

ESA’s Next Galileo Satellite Passes Trial by Noise

August 14, 2013By
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Courtesy of the European Space Agency There might seem to be a hole in the side of this Galileo satellite — in fact its folded solar wings are simply reflecting a noise horn in the wall, about to recreate the deafening roar of a rocket lifting off. Anyone witnessing a rocket launch will be struck by the noise levels, even... read more

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